Win32:Koutodoor-E [Drp]

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Win32:Koutodoor-E [Drp] infection?

In this article you will discover regarding the interpretation of Win32:Koutodoor-E [Drp] as well as its negative impact on your computer. Such ransomware are a type of malware that is elaborated by online fraudulences to demand paying the ransom by a sufferer.

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Most of the instances, Win32:Koutodoor-E [Drp] virus will certainly instruct its targets to start funds transfer for the objective of reducing the effects of the changes that the Trojan infection has actually introduced to the victim’s gadget.

Win32:Koutodoor-E [Drp] Summary

These modifications can be as follows:

  • Possible date expiration check, exits too soon after checking local time;
  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Ciphering the documents located on the target’s hard disk — so the target can no longer utilize the information;
  • Preventing routine accessibility to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Win32:Koutodoor-E [Drp]

The most common channels whereby Win32:Koutodoor-E [Drp] Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As a consequence of user winding up on a resource that holds a malicious software;

As quickly as the Trojan is successfully infused, it will either cipher the data on the victim’s PC or stop the tool from operating in a correct manner – while also putting a ransom money note that points out the requirement for the targets to effect the settlement for the objective of decrypting the papers or restoring the data system back to the initial condition. In most instances, the ransom note will certainly turn up when the client reboots the COMPUTER after the system has actually already been harmed.

Win32:Koutodoor-E [Drp] distribution channels.

In different corners of the globe, Win32:Koutodoor-E [Drp] expands by jumps and bounds. However, the ransom notes as well as methods of extorting the ransom quantity might vary depending on certain neighborhood (local) settings. The ransom money notes as well as techniques of extorting the ransom quantity may vary depending on certain neighborhood (local) settings.

Ransomware injection

For instance:

    Faulty notifies about unlicensed software program.

    In particular areas, the Trojans commonly wrongfully report having detected some unlicensed applications made it possible for on the sufferer’s gadget. The sharp then requires the user to pay the ransom.

    Faulty declarations about prohibited web content.

    In nations where software application piracy is much less preferred, this method is not as effective for the cyber frauds. Additionally, the Win32:Koutodoor-E [Drp] popup alert might falsely assert to be stemming from a police organization and will certainly report having located child pornography or various other illegal data on the device.

    Win32:Koutodoor-E [Drp] popup alert might wrongly assert to be acquiring from a legislation enforcement organization and will certainly report having situated child porn or various other unlawful information on the tool. The alert will in a similar way include a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: 87233941
md5: 1a39b8236e26aec19f0d93814b799fd6
name: 1A39B8236E26AEC19F0D93814B799FD6.mlw
sha1: 64654fe1d3732e31613cb4e8eb1dd90219190970
sha256: 3a79cb89a08be04d610c4814e14d0582fe12843a2baba77c7a0354b3cba24658
sha512: 4b38b47059f4a8d7f48bc337cd829130f5bba00325dc09d43bfc856beb2eb142af82f51b969eafc3bfa13b10480ccab6a983b432d925319aca46729dd74ce160
ssdeep: 3072:XmXlGznkhKwymOS+CpADYq0B88sRjCIlEeE+yTRT:Ue4W5CpADYqr8AxCvT
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright 2010
ProductVersion: 1, 0, 0, 0
FileVersion: 1, 0, 0, 0
Translation: 0x0804 0x04b0

Win32:Koutodoor-E [Drp] also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 001930d11 )
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop6.38984
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Koutodoor.MUE.A4
ALYac Gen:Heur.Krypt.6
Cylance Unsafe
Zillya Trojan.Koutodoor.Win32.31624
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:Win32/Koutodoor.44f7af18
K7GW Trojan ( 001930d11 )
Cybereason malicious.36e26a
Baidu Win32.Rootkit.Koutodoor.a
Cyren W32/Koutodoor.N.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Koutodoor.GU
APEX Malicious
Avast Win32:Koutodoor-E [Drp]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Heur.Krypt.6
NANO-Antivirus Trojan.Win32.MLW.evaszt
ViRobot Backdoor.Win32.A.Koutodoor.83520
MicroWorld-eScan Gen:Heur.Krypt.6
Tencent Malware.Win32.Gencirc.10c0f016
Ad-Aware Gen:Heur.Krypt.6
Sophos ML/PE-A + Mal/Koutodoor-A
Comodo TrojWare.Win32.Zybr.A@1gtnwn
BitDefenderTheta AI:Packer.7367B71021
VIPRE Trojan.Win32.Koutodoor.e (v)
Emsisoft Gen:Heur.Krypt.6 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/Generic.aoyv
Avira TR/Dropper.Gen
Antiy-AVL Trojan/Generic.ASMalwS.183D39E
Microsoft Trojan:Win32/Koutodoor.E
AegisLab Trojan.Win32.Generic.lpXH
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Win32.Trojan.PSE.15Y6OF0
AhnLab-V3 Trojan/Win32.Koutodoor.R1634
Acronis suspicious
McAfee Trojan-FDZU!1A39B8236E26
MAX malware (ai score=100)
VBA32 BScope.Trojan.Click
Malwarebytes MachineLearning/Anomalous.96%
Panda Bck/Koutodoor.E
TrendMicro-HouseCall TROJ_KTODOOR.SMF
Rising Trojan.Fedwj!1.98EA (CLOUD)
Yandex Trojan.GenAsa!QFQ/BDhi4qE
Ikarus Trojan.Win32.Koutodoor
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Koutodoor.D!tr.bdr
AVG Win32:Koutodoor-E [Drp]

How to remove Win32:Koutodoor-E [Drp] virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Win32:Koutodoor-E [Drp] files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

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If the guide doesn’t help you to remove Win32:Koutodoor-E [Drp] you can always ask me in the comments for getting help.

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About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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